M CHANGES → CHANGES

@@ -10,6 +10,7 @@ - GBA BIOS: Improve HLE BIOS timing
  - GBA DMA: Linger last DMA on bus (fixes mgba.io/i/301 and mgba.io/i/1320)
  - GBA Memory: Improve gamepak prefetch timing
  - GBA SIO: Fix Multiplayer busy bit
+ - GBA SIO: Fix double-unloading active driver
  - GBA Video: Latch scanline at end of Hblank (fixes mgba.io/i/1319)
  - GBA Video: Fix Hblank timing
 Other fixes:

M src/gba/sio.c → src/gba/sio.c

@@ -75,10 +75,13 @@ }
 }
 
 void GBASIOReset(struct GBASIO* sio) {
-	GBASIODeinit(sio);
+	if (sio->activeDriver && sio->activeDriver->unload) {
+		sio->activeDriver->unload(sio->activeDriver);
+	}
 	sio->rcnt = RCNT_INITIAL;
 	sio->siocnt = 0;
 	sio->mode = -1;
+	sio->activeDriver = NULL;
 	_switchMode(sio);
 }